Energy Dissipation Analysis Of Composite Frame Structure With Supplemental Viscous Dampers

The application of energy dissipation structure damping technology is a general trend because recent seismic activity is increasingly at home and abroad.The research and application of energy dissipation structure damping technology are developing rapidly, especially in the systems of concrete structure and stell structure.As a result of the complexity forced mechanism of concrete filled steel tube composite structure, it is applied rarely and still less often studied.The research of energy dissipation structure damping technology in concrete filled steel tube composite structure has great significance of theory and valuable application of engineering. In order to comprehend the damping effect of this damping system deeply,This study use the date of a concrete filled steel tube composite structure of a ten stores and modeling it by using SAP2000software.In this way,the date of composite frame structure with supplemental viscous dampers can be analyzed by comparing the seismic response of seismic reduction structure and general aseismic structure.This paper optimizes aseismic design in combination of engineering practice and ecaluates the effects of different optimizing methods,as a consequence,it provides references for the design and application of composite frame structure with supplemental viscous dampers.This paper’s research content mainly includes the following aspects:(1) Analysis of the advantages and fundamentals of the damping technology. Investigations about the theoretical research and practical application of composite frame structure with supplemental viscous dampers in the field of engineering both domestic and foreign.(2) Respectively to establish the motion equation of SDOF and MDOF vibration damping structure, the response spectrum method is adopted in the elastic state under the damping structure analysis,Using time history analysis method for elastoplastic conditions of structure, the equation of motion is solved by direct integral method, Calculate the structural dynamic response(3) Viscoplastic models of forced mechanism of concrete filled steel tube composite structure on SAP2000software.The system of forced mechanism of concrete filled steel tube with viscous dampers which combined with energy dissipation structure damping technology. Dynamic characteristics and seismic response characteristics of seismic reduction structure and general aseismic structure shown in different earthquake intensity and its seismic reduction effect.(4) The better design of viscous dampers using the deterministic optimization method and seismic reduction effect shown by different control functions including story drift, mode of vibration and even viscous dampers.